Motor



May 23, l950 J. R. ALLSUP, SR 2,508,356

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May 23, 1950 J. R. ALLSUP, SR 2,5@8,356

' MOTOR I N VEN TOR.

ATTE! RN EYB May 23, 1950 J. R. ALLsuP, sR 2,508,355

MOTOR Filed March 6, 1947 4 Sheets-Sheet 4 INVENTOR.

ATTCI RN EYB Patented May 23, ,14950 UNITED STATES PATENT OFFICE Moron Johan. A115111, Ysr., Port orchard, wash. ApplicationMarch s, 1947, serial No. 732,888

`1 Claim.

This .invention .relatesto hydraulic motors and pumps and .more particularly to the construction of the rstationary.housing vand .rotary parts.

-It is an object .of the present invention to provide ka .rugged iiuid Vmotor or y.pump which can be used to-hydraulicly propel automotive vehicles, ships or locomotives A.and to'eliminate the use of mechanical vtransmission from such conveyances.

'lt vis another object .of the present invention to provide a hydraulic motor `or pump with .a simple timing arrangement Iior .setting the rotary piston elements .Tor Iuse as impellers in the path of the liquid and `wherein the entering and leaving passages -oi the `liquid are separated from -one another .by a simple partition or Astructu.re which is a Separate .part of the main `housing and can beremoved for replacement after it has been worn and wherein this partition or block is avoided by the .rotary `piston elements by the timing mechanism.

Other objects of the present invention are to provide a hydraulic motor or pump which is of simple construction, easy Yto assemble, made of minimum parts and efficient in operation.

For other objects and for a better understanding of the invention reference :may .be had to the followingdetailed description taken in connection with the accompanying drawing, in which Fig.v l1 is a longitudinal `cross-sectional view of a hydraulic motor or pump embodying the features of the present invention,`

Fig. 2 is a cross-sectional View taken on line 2-2 of' Fig. 1 and looking in the direction of theV arrows thereof and looking upon the vtiming mechanism connected with the several rotary impellers,

Fig. 3 is a transverse cross-sectional view taken on line 3-3 of Fig. 1 and looking in the direction `of the arrows thereof and through the rotary impellers,

Fig. 4 is a side elevational View of the two part rotor containing the rotary valves or impellers,

Fig. 5 is an end elevational View of one of the rotor parts looking at the outer end of the same,

Fig. 6 is an end elevational view of the rotor part which contains the collars of the impellers.

Fig. '7 is an exploded and perspective view of one of the impellers or rotating pistons and of the crank which drives the same,

Fig. 8 is a top plan View of a central ring member in which the collars or enlargement portions of the impellers are guided and worked,

Fig. 9 is a perspective view of the separating partition or block which is secured to the central ring,

Referring now particularly to Figures 1 to 9,

there is shown one form of the invention wherein 2| represents one of the casing parts, 22 another of the casing parts land 23 a third one -of the casing parts .which connects lthe Yparts 2| `and i22 together while retaining -a central 4ring 24 therebetween. The casing part 2l is threaded as indicated `at .25 and .also has a radially extending flange 2B at the opposite end. The casing `part 22 .has a threaded portion .21 of larger diameter than the threaded portion Y2'5 of the casing .part 2| and an enlargement providing an eccentric chamber 28 at the opposite end .for containing -a timing mechanism or disc 29. The casing part 23 is threaded to receive the .threaded portions 25 and 21 of the casing parts 2| Aand 22 and is recessed to receive the ring -24 which has lan inner annular channel 3| therein which extends throughout the major part of its inner periphery and which has at its top a radially inwardly `extending block -32 providing a partition which closes thewchannel 3| to separate inlet and outlet passages 33 and 34 extending radially through the casing part 23 and the central .ri-ng member 24 at vopposite 4sides of the block 32'.

Adapted to ,rotate within the casing parts and the ring 24 is a .rotor structure which `includes a driving section 35 and a driven section 33A each of which. is provided with three longitudinally extending openings 31 for receiving shafts vof the rotary impellers 38- Each of the rotor ,parts have holes 39 for `receiving tie-bolts 4| which hold theA rotor assembly together. Qn Veach of the `rotary impellers 38 isan `enlargement or collar 42 which is retained in Aa counter-bore 43 of the openings 31 and the collar is adapted to extend into the channel 3| of the central ring member 24. The parts 35 and 33 are retained against rotational displacement by key 44 adapted to fit recesses 45 on the engaging faces of the parts 35 and 36. The ring 24 is retained .against rotational displacement within the casing part 23 by a key 46. The rotor structure also includes an output shaft 41 if the device is used as a motor, which has a ange 48 by which the shaft 41 is connected to the rotor parts 35 and 36 by the tie-bolts 4|. Within the casing part 2| are thrust washers 5| and 52 adapted to engage with the flange portion 48 of the shaft 41 and be retained thereagainst to take up the thrust by a casing cover 53 secured to ange 26 of casing part 2| by machine screws 54. This cover is internally threaded as indicated at 55 to retain a packing nut Y56 serving to secure a packing 51 about the shaft 41 and within an internally threaded recess 58 in a sleeve portion 59 of the casing cover part 53.

2,508,356 Y i Y.

Each of the rotary impellers 38 have an eccentrically positioned pin providing a crank element 6| secured to one end of the same and within the eccentric chamber 28 of the casing part 22. This crank element is secured against rotational displacement on the rotary impeller by pins 62 and is arranged so that the crank extension is in line with a milled off face or gap 63 of a collar 42 of the rotary impeller 38. These cranks 6l are journalled in bearing sleeves B4 lying within circumferentially spaced openings 65 of disc 66 which is rotatably mounted on a projection 51 of a cover plate 68 for the chamber 28. The projection 61 is offset from the center of the rotor the same distance that the crank is offset from the rotary impeller axis. The plate 66 is connected to the projection 61 through a ball 4bearing unit E9.

In operation when liquid is passed through inlet passage 33 under pressure and into the channel 3|, the rotor will be rotated as the impellers 38 approach the separating block 32 they will be turned so that their flattened surface 63 will ride under the block 32 of the ring 24 and free of it. Thereafter the collar is turned so that it will lie in the channel in order to be engaged by the motivating liquid. This timing of the positioning of the rotary impeller is effected by the timing device 29 and after the several rotary impellers 38 arrive at the block 32 they will automatically turn so that their collars 42 can pass beneath it. It should now be apparent that a very` durable construction and arrangement is had.

Whilevvarious changes may be made in the cletail construction it shall be understood that such changes shall be within the spirit and scope of the present invention as defined by the appended claim.

Iclaim:

In a rotary pump, the combination which comprises a rotor including a cylindrical driving section with aplurality of spaced axially disposed cylindrical openings therein spaced from the periphery thereof, said openings having counterbores positioned at the inner end of the section, and a complementary driven section having cylindrical openings therein positioned in :alignment with the said cylindrical openings of the driving section, shafts providing impellers journaled in the said cylindrical openings of the sections of the rotor, said shafts having collars thereon and positioned with the collars in the counter-bores of the openings of the driving section, said collars having iiattened surfaces thereon, a housing having inletand outlet connections and having an eccentric chamber in one end, said rotor being rotatably mounted in said housing, an annular ring member in the housing and positioned around said rotor, said ring member having an annular channel in the inner surface thereof and positioned to register with the counter-bores of the said cylindrical openings of the driving section of the rotor whereby the collars of the shafts are received in said inner annular channel, said inner annular channel positioned to communicate with the said inlet and outlet connections of the housing, a block forming a partition mounted in the ring member, extended into said inner annular channel thereof and positioned between the said inlet and outlet connections, pins mounted on the ends ofthe shafts and eccentrically positioned so as to form cranks, a cover plate providing a closure for the said eccentric chamber of the housing and having a stud extended inwardly therefrom, the axis of said stud positioned in a plane extended midway between the said inlet and outlet connections of the housing and the center of the stud being off-set from the axis ofthe rotor, a disc journaled on Said stud and having equally spaced openings therein in which the said pins of the cranks are journaled whereby upon rotation of the rotor the disc and cranks turn the said shafts so that the flattened surfaces of the collars are Within the periphery ofthe rotor as the collars pass the block rforming the partition extended into the said inner annular channel, means connecting the driven section of the rotor to the driving section, and a drive shaft extended from the driving section of the rotor through the end of the housing opposite to that in which the eccentric chamber is positioned.

JOHN R. ALLSUP, SR.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,279,913 Roberts Sept. 24, 1918 1,565,401 Schaeren Dec. 15, 1925 1,686,285 Mason Oct. 2, 1928 2,132,812 Wahlmark Oct. 11, 1938 2,181,962 Booth Dec. 5, 1939 2,182,719 Booth Dec. 5, 1939 FOREIGN PATENTS Number Country Date 480,856 Great Britain Feb. 25, 1938 

